如何将JSX元素串联到数组中? [英] How to concatenate JSX elements into an array?

问题描述

React世界中令人沮丧的时间...我需要能够根据某些条件创建标记.例如，我收到一系列物品.我需要检查这些项目，并且根据条件，我需要生成不同的标记.例如，我有一个接收项目数组的函数:

Frustrating times in React world... I need to be able to create markup based on certain criterias. For example, I receive an array of items. I need to check these items, and based on criteria, I need to generate different markup. So for example, I have a function that receives an array of items:

processItems(itemArray) {
    // Create an empty array that will hold the final JSX output.
    let buffer = []

    // Somehow push the first required markup into the buffer.
    buffer.push(<div className"container flex center">);

    // ... here we do a switch statement that evaluates each item in the 'itemArray' argument and based on that I create different <div className="XYZ">{...put stuff here...}</div> markup, which I will push into the buffer - which will contain the final JSX output...

    // Now I close the initial container element
    buffer.push(</div>);

    // And return the buffer for display inside the render() function
    return buffer;
}

问题是，我不能简单地执行 array.push()将单个标记添加到数组中，因为由于某些原因react不喜欢它，所以我只会得到乱码会显示出来.

The problem is, I cannot simply do array.push() to add individual markups into an array because react doesn't like it for some reason, and I will just end up with gibberish stuff that gets display.

任何想法我怎么可能做到这一点?

Any ideas how could I possibly do this?

推荐答案

您的解决方案应如下所示:

Your solution should look like this:

processItems(itemArray) {
    // Create an empty array that will hold the final JSX output.
    let buffer = []

    buffer.push(<div>A</div>);
    buffer.push(<div>B</div>);
    buffer.push(<div>C</div>);


    // And return the buffer for display inside the render() function
    return (
        <div className"container flex center">
            {buffer}
        </div>
    );
}

JSX不是HTML，因此无法分多个步骤组装html元素.

JSX is not HTML and you cannot assemble the html elements in multiple steps.

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